[volt-nuts] 3458a RAM batteries - longer life if unit is continually powered?

[Poul-Henning Kamp]

In message <BLU170-W2245A847B241ED69892E1ECE670 at phx.gbl>, Mark Sims writes:

>The 3458A does have a vacuum fluorescent display and they do go
>bad over time.  I've seen lots of them with bad displays.  Replacements
>are expensive... they are a custom HP part only available from HP.

The hardware interface is pretty simple though, so it wouldn't be hard
to create a replacement.


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